Home / 15,823.81-21,827.31-10,446.29

Finding the Fourth Proportional to 15,823.81, 21,827.31 and 10,446.29

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Solution

The fourth proportional to 15,823.81, 21,827.31 and 10,446.29 is: 14,409.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,823.81 : 21,827.31 = 10,446.29 : x
  2. Step 2: Convert to fraction form
    15,823.81/21,827.31 = 10,446.29/x
  3. Step 3: Cross multiply
    15,823.81x = 21,827.31 × 10,446.29
  4. Step 4: Simplify right side
    15,823.81x = 228,014,301.04
  5. Step 5: Solve for x
    x = 228,014,301.04/15,823.81
  6. Step 6: Final answer
    x = 14,409.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.